Re: NTSC VIC-II timing

From: smf <*smf_at_null.net*> Date: Wed, 21 Jun 2017 22:06:20 +0100 Message-ID: <a4081108-1f83-3cde-5676-05e1bd717d72@null.net> · smf_at_null.net

On 21/06/2017 20:08, Segher Boessenkool wrote:
> IIRC the LP stuff can be triggered only once per frame, this makes it
> a bit inconvenient to use for non-lightpen uses like we are discussing
> here.  It would be nice if we could just read out the current X coor
> directly, but nope.

I think that is done so it only triggers the first time the beam is 
seen. Otherwise it would get triggered on multiple lines.

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